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Duane syndrome

National Organization for Rare Disorders, Inc.

ImportantIt is possible that the main title of the report Duane syndrome is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.

Synonyms

DR syndrome

Duane radial ray syndrome (DRRS)

Duane's retraction syndrome

eye retraction syndrome

retraction syndrome

Stilling-Turk-Duane syndrome

Disorder Subdivisions

Duane syndrome Type IA, 1B, 1C

Duane syndrome Type 2A, 2B, 2C

Duane syndrome Type 3A, 3B, 3C

General Discussion

Duane syndrome (DS) is an eye movement disorder present at birth (congenital) characterized by horizontal eye movement limitation [a limited ability to move the eye inward toward the nose (adduction), outward toward the ear (abduction), or in both directions]. In addition, when the affected eye(s) moves inward toward the nose, the eyeball retracts (pulls in) and the eye opening (palpebral fissure) narrows. In some cases, when the eye attempts to look inward, it moves upward (upshoot) or downward (downshoot).

Duane syndrome falls under the larger heading of strabismus (misalignment of the eyes) under the subclassification of incomitant strabismus (misalignment of the eyes that varies with gaze directions) and subheading of what was previously termed extraocular fibrosis syndromes (conditions associated with fibrosis of the muscles that move the eyes), now termed Congenital Cranial Dysinnervation Disorders (CCDDs). The CCDDs are a group of congenital neuromuscular diseases resulting from developmental errors in innervation, the abnormalities involve one or more cranial nerves/nuclei with absence of normal innervation and/or secondary aberrant innervation. The group includes Duane syndrome, congenital fibrosis of the extraocular muscles (CFEOM), congenital ptosis, Marcus Gunn Jaw winking, Möbius syndrome, Crocodile tears, horizontal gaze palsy and congenital facial palsy, but this is not an exhaustive list.

Duane syndrome has been subdivided clinically into three types: Type 1, Type 2, and Type 3.

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.

It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report

This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

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